class aestest:
    s_box = [
        0x63, 0x7C, 0x77, 0x7B, 0xF2, 0x6B, 0x6F, 0xC5, 0x30, 0x01, 0x67, 0x2B, 0xFE, 0xD7, 0xAB, 0x76,
        0xCA, 0x82, 0xC9, 0x7D, 0xFA, 0x59, 0x47, 0xF0, 0xAD, 0xD4, 0xA2, 0xAF, 0x9C, 0xA4, 0x72, 0xC0,
        0xB7, 0xFD, 0x93, 0x26, 0x36, 0x3F, 0xF7, 0xCC, 0x34, 0xA5, 0xE5, 0xF1, 0x71, 0xD8, 0x31, 0x15,
        0x04, 0xC7, 0x23, 0xC3, 0x18, 0x96, 0x05, 0x9A, 0x07, 0x12, 0x80, 0xE2, 0xEB, 0x27, 0xB2, 0x75,
        0x09, 0x83, 0x2C, 0x1A, 0x1B, 0x6E, 0x5A, 0xA0, 0x52, 0x3B, 0xD6, 0xB3, 0x29, 0xE3, 0x2F, 0x84,
        0x53, 0xD1, 0x00, 0xED, 0x20, 0xFC, 0xB1, 0x5B, 0x6A, 0xCB, 0xBE, 0x39, 0x4A, 0x4C, 0x58, 0xCF,
        0xD0, 0xEF, 0xAA, 0xFB, 0x43, 0x4D, 0x33, 0x85, 0x45, 0xF9, 0x02, 0x7F, 0x50, 0x3C, 0x9F, 0xA8,
        0x51, 0xA3, 0x40, 0x8F, 0x92, 0x9D, 0x38, 0xF5, 0xBC, 0xB6, 0xDA, 0x21, 0x10, 0xFF, 0xF3, 0xD2,
        0xCD, 0x0C, 0x13, 0xEC, 0x5F, 0x97, 0x44, 0x17, 0xC4, 0xA7, 0x7E, 0x3D, 0x64, 0x5D, 0x19, 0x73,
        0x60, 0x81, 0x4F, 0xDC, 0x22, 0x2A, 0x90, 0x88, 0x46, 0xEE, 0xB8, 0x14, 0xDE, 0x5E, 0x0B, 0xDB,
        0xE0, 0x32, 0x3A, 0x0A, 0x49, 0x06, 0x24, 0x5C, 0xC2, 0xD3, 0xAC, 0x62, 0x91, 0x95, 0xE4, 0x79,
        0xE7, 0xC8, 0x37, 0x6D, 0x8D, 0xD5, 0x4E, 0xA9, 0x6C, 0x56, 0xF4, 0xEA, 0x65, 0x7A, 0xAE, 0x08,
        0xBA, 0x78, 0x25, 0x2E, 0x1C, 0xA6, 0xB4, 0xC6, 0xE8, 0xDD, 0x74, 0x1F, 0x4B, 0xBD, 0x8B, 0x8A,
        0x70, 0x3E, 0xB5, 0x66, 0x48, 0x03, 0xF6, 0x0E, 0x61, 0x35, 0x57, 0xB9, 0x86, 0xC1, 0x1D, 0x9E,
        0xE1, 0xF8, 0x98, 0x11, 0x69, 0xD9, 0x8E, 0x94, 0x9B, 0x1E, 0x87, 0xE9, 0xCE, 0x55, 0x28, 0xDF,
        0x8C, 0xA1, 0x89, 0x0D, 0xBF, 0xE6, 0x42, 0x68, 0x41, 0x99, 0x2D, 0x0F, 0xB0, 0x54, 0xBB, 0x16
    ]

    inv_s_box = [
        0x52, 0x09, 0x6A, 0xD5, 0x30, 0x36, 0xA5, 0x38, 0xBF, 0x40, 0xA3, 0x9E, 0x81, 0xF3, 0xD7, 0xFB,
        0x7C, 0xE3, 0x39, 0x82, 0x9B, 0x2F, 0xFF, 0x87, 0x34, 0x8E, 0x43, 0x44, 0xC4, 0xDE, 0xE9, 0xCB,
        0x54, 0x7B, 0x94, 0x32, 0xA6, 0xC2, 0x23, 0x3D, 0xEE, 0x4C, 0x95, 0x0B, 0x42, 0xFA, 0xC3, 0x4E,
        0x08, 0x2E, 0xA1, 0x66, 0x28, 0xD9, 0x24, 0xB2, 0x76, 0x5B, 0xA2, 0x49, 0x6D, 0x8B, 0xD1, 0x25,
        0x72, 0xF8, 0xF6, 0x64, 0x86, 0x68, 0x98, 0x16, 0xD4, 0xA4, 0x5C, 0xCC, 0x5D, 0x65, 0xB6, 0x92,
        0x6C, 0x70, 0x48, 0x50, 0xFD, 0xED, 0xB9, 0xDA, 0x5E, 0x15, 0x46, 0x57, 0xA7, 0x8D, 0x9D, 0x84,
        0x90, 0xD8, 0xAB, 0x00, 0x8C, 0xBC, 0xD3, 0x0A, 0xF7, 0xE4, 0x58, 0x05, 0xB8, 0xB3, 0x45, 0x06,
        0xD0, 0x2C, 0x1E, 0x8F, 0xCA, 0x3F, 0x0F, 0x02, 0xC1, 0xAF, 0xBD, 0x03, 0x01, 0x13, 0x8A, 0x6B,
        0x3A, 0x91, 0x11, 0x41, 0x4F, 0x67, 0xDC, 0xEA, 0x97, 0xF2, 0xCF, 0xCE, 0xF0, 0xB4, 0xE6, 0x73,
        0x96, 0xAC, 0x74, 0x22, 0xE7, 0xAD, 0x35, 0x85, 0xE2, 0xF9, 0x37, 0xE8, 0x1C, 0x75, 0xDF, 0x6E,
        0x47, 0xF1, 0x1A, 0x71, 0x1D, 0x29, 0xC5, 0x89, 0x6F, 0xB7, 0x62, 0x0E, 0xAA, 0x18, 0xBE, 0x1B,
        0xFC, 0x56, 0x3E, 0x4B, 0xC6, 0xD2, 0x79, 0x20, 0x9A, 0xDB, 0xC0, 0xFE, 0x78, 0xCD, 0x5A, 0xF4,
        0x1F, 0xDD, 0xA8, 0x33, 0x88, 0x07, 0xC7, 0x31, 0xB1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xEC, 0x5F,
        0x60, 0x51, 0x7F, 0xA9, 0x19, 0xB5, 0x4A, 0x0D, 0x2D, 0xE5, 0x7A, 0x9F, 0x93, 0xC9, 0x9C, 0xEF,
        0xA0, 0xE0, 0x3B, 0x4D, 0xAE, 0x2A, 0xF5, 0xB0, 0xC8, 0xEB, 0xBB, 0x3C, 0x83, 0x53, 0x99, 0x61,
        0x17, 0x2B, 0x04, 0x7E, 0xBA, 0x77, 0xD6, 0x26, 0xE1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0C, 0x7D
    ]
    Rcon = [0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1B, 0x36]

    def __init__(self, key):
        self.key = key  # 此处key应为字节类型 [[4]]
        self.round_keys = self.expand_key(key)

    def expand_key(self, key):
        w = []
        for i in range(4):
            w.append(bytes([key[i * 4], key[i * 4 + 1], key[i * 4 + 2], key[i * 4 + 3]]))

        for i in range(4, 44):
            temp = w[i - 1]
            if i % 4 == 0:
                temp = self.sub_word(self.rot_word(temp))
                rcon_val = self.Rcon[(i // 4) - 1] << 24
                temp = bytes([temp[0] ^ ((rcon_val >> 24) & 0xFF),
                              temp[1] ^ ((rcon_val >> 16) & 0xFF),
                              temp[2] ^ ((rcon_val >> 8) & 0xFF),
                              temp[3] ^ (rcon_val & 0xFF)])
            temp = bytes([a ^ b for a, b in zip(w[i - 4], temp)])
            w.append(temp)

        round_keys = []
        for i in range(11):
            start = i * 4
            round_key = []
            for j in range(4):
                round_key.append(w[start + j])
            round_keys.append(round_key)
        return round_keys

    def rot_word(self, word):
        return bytes([word[1], word[2], word[3], word[0]])

    def sub_word(self, word):
        return bytes([self.s_box[b] for b in word])

    def encrypt(self, plaintext):
        # 补全到16字节（PKCS7填充）
        pad_len = 16 - len(plaintext) % 16
        plaintext += bytes([pad_len]) * pad_len

        state = self.bytes_to_state(plaintext)
        state = self.add_round_key(state, 0)

        for round_num in range(1, 10):
            state = self.sub_bytes(state)
            state = self.shift_rows(state)
            state = self.mix_columns(state)
            state = self.add_round_key(state, round_num)

        state = self.sub_bytes(state)
        state = self.shift_rows(state)
        state = self.add_round_key(state, 10)
        return self.state_to_bytes(state).hex()  # 转为十六进制字符串[[7]]

    def decrypt(self, ciphertext):
        state = self.bytes_to_state(ciphertext)
        state = self.add_round_key(state, 10)

        for round_num in range(9, 0, -1):
            state = self.inv_shift_rows(state)
            state = self.inv_sub_bytes(state)
            state = self.add_round_key(state, round_num)
            state = self.inv_mix_columns(state)

        state = self.inv_shift_rows(state)
        state = self.inv_sub_bytes(state)
        state = self.add_round_key(state, 0)
        return self.state_to_bytes(state)

    def bytes_to_state(self, b):
        return [
            [b[0], b[4], b[8], b[12]],
            [b[1], b[5], b[9], b[13]],
            [b[2], b[6], b[10], b[14]],
            [b[3], b[7], b[11], b[15]]
        ]

    def state_to_bytes(self, state):
        return bytes([
            state[0][0], state[1][0], state[2][0], state[3][0],
            state[0][1], state[1][1], state[2][1], state[3][1],
            state[0][2], state[1][2], state[2][2], state[3][2],
            state[0][3], state[1][3], state[2][3], state[3][3]
        ])

    def sub_bytes(self, state):
        return [[self.s_box[b] for b in row] for row in state]

    def inv_sub_bytes(self, state):
        return [[self.inv_s_box[b] for b in row] for row in state]

    def shift_rows(self, state):
        return [
            [state[0][0], state[0][1], state[0][2], state[0][3]],
            [state[1][1], state[1][2], state[1][3], state[1][0]],
            [state[2][2], state[2][3], state[2][0], state[2][1]],
            [state[3][3], state[3][0], state[3][1], state[3][2]]
        ]

    def inv_shift_rows(self, state):
        return [
            [state[0][0], state[0][1], state[0][2], state[0][3]],
            [state[1][3], state[1][0], state[1][1], state[1][2]],
            [state[2][2], state[2][3], state[2][0], state[2][1]],
            [state[3][1], state[3][2], state[3][3], state[3][0]]
        ]

    def mix_columns(self, state):
        new_state = [[0] * 4 for _ in range(4)]
        for c in range(4):
            s0, s1, s2, s3 = state[0][c], state[1][c], state[2][c], state[3][c]
            new_state[0][c] = self.galois_mult(2, s0) ^ self.galois_mult(3, s1) ^ s2 ^ s3
            new_state[1][c] = s0 ^ self.galois_mult(2, s1) ^ self.galois_mult(3, s2) ^ s3
            new_state[2][c] = s0 ^ s1 ^ self.galois_mult(2, s2) ^ self.galois_mult(3, s3)
            new_state[3][c] = self.galois_mult(3, s0) ^ s1 ^ s2 ^ self.galois_mult(2, s3)
        return new_state

    def inv_mix_columns(self, state):
        new_state = [[0] * 4 for _ in range(4)]
        for c in range(4):
            s0, s1, s2, s3 = state[0][c], state[1][c], state[2][c], state[3][c]
            new_state[0][c] = self.galois_mult(0xE, s0) ^ self.galois_mult(0xB, s1) ^ self.galois_mult(0xD,
                                                                                                       s2) ^ self.galois_mult(
                0x9, s3)
            new_state[1][c] = self.galois_mult(0x9, s0) ^ self.galois_mult(0xE, s1) ^ self.galois_mult(0xB,
                                                                                                       s2) ^ self.galois_mult(
                0xD, s3)
            new_state[2][c] = self.galois_mult(0xD, s0) ^ self.galois_mult(0x9, s1) ^ self.galois_mult(0xE,
                                                                                                       s2) ^ self.galois_mult(
                0xB, s3)
            new_state[3][c] = self.galois_mult(0xB, s0) ^ self.galois_mult(0xD, s1) ^ self.galois_mult(0x9,
                                                                                                       s2) ^ self.galois_mult(
                0xE, s3)
        return new_state

    def galois_mult(self, a, b):
        p = 0
        for _ in range(8):
            if b & 1:
                p ^= a
            hi_bit_set = a & 0x80
            a <<= 1
            a &= 0xFF
            if hi_bit_set:
                a ^= 0x1B
            b >>= 1
        return p & 0xFF

    def add_round_key(self, state, round_num):
        key = self.round_keys[round_num]
        new_state = [[0] * 4 for _ in range(4)]
        for c in range(4):
            for r in range(4):
                new_state[r][c] = state[r][c] ^ key[c][r]
        return new_state

def Evidence(text, key):
    key_bytes = key.encode('utf-8')[:16]  # 截断/填充到16字节[[9]]
    text_bytes = text.encode('utf-8')
    aes = aestest(key_bytes)
    enc = aes.encrypt(text_bytes)
    print(f"b'{enc}'")  # 格式化输出十六进制字符串[[7]]
    detext = aes.decrypt(enc)
    print(f"b'{detext.decode('utf-8')}'")


text = "1234567891234567"
key = "plaintext1234567"
Evidence(text, key)